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Submitted by mannde on Thu, 2013-03-14 21:10
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A. A bullet leaves a rifle with a muzzle velocity of 521 m/s. While accelerating through the barrel of the...

A. A bullet leaves a rifle with a muzzle velocity of 521 m/s. While accelerating through the barrel of the rifle, the bullet moves a distance of 0.840 m. Determine the acceleration of the bullet (assume a uniform acceleration). B. Ima Hurryin is approaching a stoplight moving with a velocity of +30.0 m/s. The light turns yellow, and Ima applies the brakes and skids to a stop. If Ima's acceleration is -8.00 m/s2, then determine the displacement of the car during the skidding process. (Note that the direction of the velocity and the acceleration vectors are denoted by a + and a - sign.)

Submitted by gerard on Thu, 2013-03-14 22:59
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Physics Numericals

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xxxxxxx xxxx the xxxxxxxxxx for solution for xxx xxxxx numericals.

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A. x xxxxxx leaves a rifle with a muzzle xxxxxxxx of 521 m/s. xxxxx accelerating through xxx barrel xx the rifle, the bullet xxxxx a distance xx xxxxx xx xxxxxxxxx xxx xxxxxxxxxxxx of xxx xxxxxx (assume a uniform xxxxxxxxxxxxxx


xxx xxxxxxx xxxxxxxx xx xxx xxxxx xxxxxxxx xx vf, xxxxxxxxxxx xx xx xxx xxx distance be xx

Given: xx = x xxx x vf x xxx m/s xxx x = xxxxx x

Here xx have xx find: a = xx

xx xxxxx

vf2 x xxx x 2*a*d

(521 xxxxx x xx m/s)2 x xxxxxxxxxxxx m)

271441 m2/s2 x xx m/s)2 + xxxxx xxxx

(271441 m2/s2)/(1.68 m) = x

a = 1.62*105 m /s2

Hence, xxx acceleration of xxx bullet xx xxxxxxxx x /s2.

B. xxx Hurryin xx xxxxxxxxxxx x xxxxxxxxx xxxxxx with x xxxxxxxx of xxxxx xxxx xxx light turns yellow, and xxx xxxxxxx the xxxxxx xxx skids to a xxxxx xx Ima's xxxxxxxxxxxx is -8.00 m/s2, then xxxxxxxxx xxx displacement of the xxx during xxx xxxxxxxx process. xxxxx xxxx xxx xxxxxxxxx of the velocity xxx the xxxxxxxxxxxx xxxxxxx are denoted by a x and x x

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